Improvement in take-ups for knitting-frames



W. HQ CARR. Take-Up for Knitting-Frames.-

No. 216,655. f --Patented June I7, 1879.`

@RUM mi,

n. PETERS PHOTO-UTHUGRAPNER. WASHINGTDN. D c,

vat-ion UNITED Strarrss.`

PATENT OFFICE WILLIAM H. CARR, OF LANSINGBURG, NEW YORK.

IMPROVEMENTIN TAKE-UPS FOR KNITTINGFI'\ AMES.`

Specification forming part of Letters Patent No. 216,655, dated June 17,1879 application filed April 19, 1879.

' for Knitting-Frames; -and l do herebydeclare that the following is afull, clear, and exact descript-ion of the invention, which Will enable'others skilled in the art to which it appertains Jto make and use thesaine, reference being had to the accompanying drawings, and to theletters of reference marked thereon, which form a part of thisspecification, in Which- Figure 1 is a side elevation. Fig. 2 is an end.elevation. Fig. 3 is a sectional end ele Fig. 4 is a longitudinalsectional elevation on avertical line of the center of the roll B. Fig.5 is a cross-section of the roller B on the line .r w, Fig. 4; and Fig.6 is an end view of the right-hand end of roll B.

The invention relates to an improved takeup for circular-knittingframes.

The object of my invention is to provide a 'system of parts by which thecircular web iknitted on a circular frame-may be takenv up `as fast asknitted, and the tension or strain on hole to receive the shaft K,having attached toits upper end the gear-Wheel N, which gear- Wheel N isdriven by the pinion 0, by any suitable prime motor, through the mediumof the shaft that carries the said pinion 0.

The frame P carries the Working parts of my invention. y The gear-wheelN and the frame P are attached rigidly to the shaft K, and revolvetogether, While the bevel-gear M remains stationary.

The frame P, constructed substantially as shown, carries and `supportsthe shaft K, having thereon the bevel-gear L and the disk S, with thewrist-pin S' therein. I is abasin for catching any Waste oil that mightdrop from the gears M and L or shaft K.

h (see Figs. 1, 4, 5, and 6) is a hollow shaft, having fastened thereonpermanently the rol ler B. The outer end. m, of said shaft his closedup, substantially as shown atm, excepting the small square hole a inthecent-er. (SeeFig. 6.)

Upon the opposite end from mis fastened permanently the ratchet-wheelc'by the setserew e. Close to the side of ratchet-ivl1eel c is placed acorresponding ratchet-wheel, D, having on the outer end of the hub `of.the saine the disk b, held thereon by the setscrews c c', and havingalso in the center of said disk b a square hole, a', to correspondWiththe hole a in the opposite end of the said shaft. This ratchet-wheelD is loose upon the shaft h, and is held thereon lengthwise by the nuta. This ratchet-wheel D is provided with a slot, d', substantially asshown in Figs. 2,3, and 4, which slot describes the arc of a circlearound the center of the hollow shaft h.. In the ratchet-wheel c isplaced permanently a pin or, stud, d, (see Figs. l, 2, 3, and 4,) whichpin or stud extends through the slot d.

F is a pawl which engages with the ratchetwheel c. E is a pawl that isconnected to the wrist-pin S', and engages with the ratchet D. f f arecross-rods to support and form part of the frame P. g (sce Figs. l, 2,3, and 4) is a guideroller that revolves loosely in bearings in frame P.H H are vertical guides, that hold into posit-ion the roll of cloth onthe take-up roll Gas it is wound into a roll by the` frictional contactwith the roll B.

The operation of my invention is as follows: The cloth from the cylinderis brought up over a suitable spreader, so as to flatten the web into aflat sheet, and vis carried up, as indicatedby the line k, (see Figs. 2and 3,) partially over the roll g, onto the roll B, where itis presseddown tightly by the weight of the take-up roll G, around which it winds.

The proper strain or tension upon the cloth 7c is obtained by adjustingthe ratchet-Wheel c upon the hollow shaft h, so as to give the desiredtorsional strain upon the small square rod a, that extends from l thedisk 1 1, through thehollow shaft h, into the squareopenin g a in theother end of the saidshaft h. (See Figs. 1, 2, 3, 4, 5, and 6.)

As the cloth is knitted the motion of the frame causes a reciprocatingmotion` to the pawl E by the shaft K being revolved by the bevel-gear Lthereon meshing into and with the stationary bevel-gear M.

The normal position of the two ratchet-wheels D and o is shown in Fig.2, the pin d being close to the f'orward part of the slot d. Thepositive speed of the ratchet-wheel D is equal to the speed of the pawlE. The speed of the cloth as it comes from the knitting-cylin- Vdershould be a little less than the'ispeed of the surface of thc roll B,and the variation between the two is accommodated bythe torsion of therod a, which if there is not cloth enough to take up a notch or tooth onthe ratchetwheel c, to be held by the pawl F, the torsionrod a yields ortwists sufficiently by the action of the pawl E on ratchet D, and as thepawl E makes the reverse movement the torsion of the rod a causes theratchet D to return to the position that it occupied bef'ore the strokejust alluded to, and if there is not cloth enough knitted by anotherrevolution of the knittingframe, the same results are again produced;but if, upon another revolution of the frame, there is sufficient clothknitted, the action of the pawl E on ratchet D being continued,

the strain upon the rod a is thereby released by the excess of cloth,which causes the roll B torevolve forward, so as to take up a notch onthe ratchet c by the pawl F, and if there is cloth enough knitted uponanother revolution the same operation is repeated; but if there is adeficiency of cloth, which must cause a greater torsional strain uponthe rod a, the

roll B will not move forward in unison with the ratchet D, but insteadthereof the rod a, by its torsional qualities, will yield between theend at a', and the other end at a, thereby allowing the ratchet D tomove forward without carrying with it the roll B, and when the pawl Emoves backward the ratchetwheel D willfollow it back.

The excess of strain on the cloth, as above stated, will hold the yrollB from turning forward, while the pawl E will compel the ratchet-A wheelD to 'move forward, thus passing the 'slot d' lengthwise over the pin din ratchet 0,-

and as the pawl E makes the backward or return movement, the ratchet D,by the action i of the torsion-spring, will move back with it Thetorsion-rod ce may be made roundjin-f stead of" square, and theratchet-wheel c may be placed upon the opposite end of the shaft h, andthe accompanying pawl F be placed upon the same side of the frame l?, toengage it, without changing the nature of my invention.

Also, the teeth of the ratchet-wheel c may be made much finer say, anynumber that will subdivide by the number of teeth in the outer wheel,D-Without changing the nature of my invention.

The advantages of my improvements con sist in the great perfection ofits work-that is, the perfect equal strain or tension of the cloth uponthe needles, which has not heretofore been accomplished in so perfect amanner; also, the extreme lightness of the working parts, in comparisonto the amount of work to be performed, has never heretofore beenattained, which is especially desirable in knitting-machines of thisclass.

Having described the construction and operation of my invention, what Iclaim as new, and desire to secure by Letters Patent, is-

1. In a take-up mechanism for circular-knitting frames, the combinationof a hollow shaft having thereon at one end a tight and a loose ratchet,said tight ratchet being provided with a pin or stud, and ,the outer orloose ratchet provided with a corresponding slot to receive the pin, anda disk on its hub having a central hole to receive-and hold atorsion-sprin g, said torsion-spring extending entirely through thehollow shaft and fastened to the opposite vend thereof,allsubstantiall-y as shown and described.

2. In a take-np mechanism for circular-knitting frames, the combinationof thesframe P, hollow shaft h, having thereon the roll B,ratchet-wheels D and c, provided respectively with the slot d', pin d,pawls F and E, and means for operating said pawl E, spiral spring y, andtorsional spring a, placed within the hollow shaft lL, all operating asand for the purposes substantially as shown land described.

3. In a take-up mechanism for circular-knitting frames, the combinationof the frame P, gear-wheels M and L, shaft K, disk S, wristpin S',hollow shaft h, having thereon the roll B, and ratchet-wheels D and c,provided rcspectively with the slotfd, pin d, pawls F and E, and meansfor operating said pawl E, spiral spring y, roll g, vand torsionalspring a., placed within the hollow shaft L, all operating as and forthe purposes substantially as set forth, shown, and described.

In testimony that I claim the foregoing as my .own I affix my signaturein presence of two witnesses.

WILLIAM I-I. GARR.

Witnesses:

JOHN GLU'rE, W. DAviDsoN JoNEs.

